Timonius lasianthoides Valet., Bull. Dep. Agric. Indes Neerl. 26 (1909)

Latin for 'similar to Lasianthus', a Rubiaceae genus.

Understorey tree up to 12 m tall and 15 cm dbh. Stipules ca. 7 mm long, triangular. Leaves crowded at twig tips, opposite, simple, penni-veined, glabrous. Flowers ca. 7 mm diameter, green-yellow, with corolla tube, placed in cymes. Fruits ca. 11 mm diameter, green, berries.

In disturbed (open sites) to undisturbed mixed dipterocarp, keranga and sub-montane forests up to 1200 m altitude. Often on alluvial sites and along rivers and streams, but also on hillsides and ridges. On sandy to clay soils.

The leaves are used to treat wounds and scabies.

Sumatra, Borneo (throughout the island).

Local names
Borneo: Bar, Bulu udok, Kemudok, Mulong udok, Rentap, Selembuca, Turang oyung.